Patent Assignment
Reel/Frame 012518/0128
Assignment of Assignor's Interest
Recorded: 2001-11-13
Pages: 4
Assignor
DUNBAR, MARK
Executed: 2001-10-02
Assignee
HUGHES, W. JAMES
6310 E. 98TH PLACE, TULSA, OKLAHOMA, 74137
Covered Property
(1)
Concentric Casing Jack
Related Assignments
(7)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 13, 2001
From: RENFRO, JIMMIE JOSH
To: HUGHES, W. JAMES
Reel/Frame 012518/0141 →
Assignment of Assignor's Interest
Apr 4, 2003
From: HUGHES, W. JAMES
To: HUGHES UBHD TOOL COMPANY, LLC
Reel/Frame 013920/0219 →
Assignment of Assignor's Interest
Jun 16, 2003
From: HUGHES UBHD TOOL COMPANY, LLC
To: SUNSTONE CORPORATION
Reel/Frame 014209/0805 →
Assignment of Assignor's Interest
Jan 22, 2009
From: SUNSTONE CORPORATION
To: SUNSTONE TECHNOLOGIES, LLC
Reel/Frame 022137/0199 →
Amendment to Security Agreement
Feb 19, 2014
From: SUNSTONE TECHNOLOGIES, LLC
To: SUNSTONE ENERGY GROUP, LLC
Reel/Frame 032276/0771 →
Security Agreement
Feb 19, 2014
From: SUNSTONE TECHNOLOGIES, LLC
To: SUNSTONE ENERGY GROUP, LLC
Reel/Frame 032276/0699 →
Notice of Lender Name Change
Aug 18, 2017
From: SUNSTONE ENERGY GROUP, LLC
To: BLACK OAK ENERGY HOLDINGS, LLC
Reel/Frame 044102/0017 →